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Gravel Calculator

Size the gravel for any job from real geometry — area and depth, gravel type and compaction — with cubic yards, weight in tons, bag counts, U.S. pricing, and a downloadable PDF.

Gravel weight swings with stone type and moisture — dense base rock is heavier. Prices use 2024-2025 U.S. figures. For planning purposes only.

Area & Gravel
1 Coverage Area
ft
×
ft
in
x
sq ft
Length × width × areas. Edit to enter a known or irregular area.
10%
Gravel settles when tamped — order extra so the finished depth holds
2 Gravel Type
lb / cu ft
Most gravel is about 100-135 lb per cubic foot (~1.4-1.8 tons/yd). Base rock packs densest.
3 Cost
$
$
Total cost uses bulk (by the ton); the bag cost is shown for comparison on small jobs.
Gravel Estimate
Gravel Needed
Enter your area to begin
Weight
Volume
Bags
Volume & Weight
Coverage area
Gravel depth
Bulk density
Loose volume before compaction
Compaction add
Weight
TOTAL SAND
Coverage
Bag Cost
Total Cost
Gravel By Depth
Cubic yards for your area, by gravel depth
Depth Comparison — Your Area
DepthCubic YardsWeight (ton)Bags

For your 400 sq ft area, includes 10% compaction. Deeper layers need much more gravel.